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Table of Subbasin Assessments, TMDLs, Implementation Plans, and Five-Year Reviews

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Below are links to subbasin assessments, total maximum daily loads (TMDLs), implementation plans, and five-year reviews completed in Idaho.

For information on and DEQ contacts for specific subbasins, click on the subbasin name. For general information on the TMDL process, contact DEQ's TMDL Program Manager, Marti Bridges, at (208) 373-0382 or marti.bridges@deq.idaho.gov.

Subbasin NameHydrologic Unit Code (HUC)TMDL StatusImplementation Plan StatusFive Year Review Status
American Falls Subbasin
17040206

Approved by EPA
August 2012

Bear River Basin/Malad River Subbasin
16010201 16010102 16010204 16010202

Approved by EPA
June 2006

Bear River Basin Addendum
Approved by EPA
September 2013

Lower Bear/Malad Subbasin Agriculture:
Completed May 2010

Central Bear (Bear River Mainstem) Agriculture:
Completed October 2008

Northern Middle Bear
Agriculture: Completed
September 2008

Southern Middle Bear
Agriculture: Completed
September 2008

Bear Lake Subbasin
Agriculture: Completed
July 2008

Bear River/Malad River
Forest Svc.: Completed
April 2008

Daniels Watershed:
Completed 2007

Cub River Watershed
Agriculture: Completed
September 2006

Beaver-Camas Subbasin
17040214

Approved by EPA
August 2005

Under development

Big Lost River Subbasin
17040218

Approved by EPA
August 2004


Addendum approved
by EPA
December 2011

Agriculture Completed
May 2011

See TMDL Addendum

Big Wood River Subbasin
17040219

Approved by EPA
May 2002

Errata approved
by EPA
February 2012

Temperature Addendum
Approved by EPA
December 2013

Agriculture Completed October 2006;
Revised February 2014

Birch Creek Subbasin
17040216

Assessment Completed
March 2005

Blackfoot River Subbasin
17040207

Approved by EPA
April 2002


Brush Creek Temperature TMDL
Approved by EPA
November 2007

Blackfoot River TMDL Addendum
Approved by EPA
October 2013

 

Completed
February 2006

Boise - Mores Creek Subbasin
17050112

Approved by EPA
February 2010

Boise River (Lower) Subbasin
17050114

Approved by EPA
January 2000

Assessments Completed
December 2001

Addendum Approved
by EPA June 2008

Lake Lowell TMDL Approved
by EPA December 2010

 

Completed December 2003

Phosphorus Completed
December 2008

Lake Lowell Completed
June 2012

Completed
February 2009

Boise River (North/Middle Fork) Subbasin
17050111

Assessment Completed
November 2002

NA

Boise River (South Fork) Subbasin
17050113

Assessment Completed
2002

TMDL Approved by EPA
March 2009

See TMDL Appendix J
See TMDL
Brownlee Reservoir Subbasin
Includes Wildhorse River watershed
17050201

Approved by EPA
November 2003

Wildhorse River TMDL
Approved by EPA
October 2007

Agriculture Completed
September 2004;
Revised 2014

Wildhorse River Agriculture
Completed March 2010

Wildhorse River Forestry
Completed February 2010

Bruneau River Subbasin
17050102

Approved by EPA
March 2001

Jacks Creek Aquaculture Addendum TMDL
Approved by EPA
November 2007

Bruneau River
Agriculture Completed
June 2002;
Revised March 2013

Jacks Creek
Agriculture Completed
June 2002;
Revised March 2013

C.J. Strike Reservoir Subbasin
17050101

Approved by EPA
June 2006

Agriculture Completed
November 2007

Dissolved Oxygen Completed
November 2007;
Revised Dec. 2008

Camas Creek Subbasin
17040220

Approved by EPA
September 2005

Agriculture Completed
August 2007;
Revised March 2013

Clark Fork River (Lower) Subbasin
17010213

Clark Fork/Pend Oreille TMDL
Approved by EPA
September 2000 and
April 2001

Lower Clark Fork TMDL
Approved by EPA
October 2007

Clearwater River (South Fork) Subbasin
Includes Cottonwood Creek watershed
17060305

Cottonwood Creek TMDL
Approved by EPA June 2000

Approved by EPA
March 2004

Completed April 2006

Agriculture Completed
March 2005;
Revised January 2014

Clearwater River Subbasin
Includes Hatwai Creek, Jim Ford Creek, Lindsay Creek, Lolo Creek tributaries, Potlatch River, and Winchester Lake - Lapwai Creek watersheds
17060306

Winchester Lake TMDL
Approved by EPA
March 1999

Jim Ford Creek TMDL
Approved by EPA
June 2000

Lindsay Creek TMDL
Approved by EPA
June 2007

Potlatch River TMDL
Approved by EPA
February 2009

Hatwai Creek TMDL
Approved by EPA
December 2010

Lolo Creek tributaries TMDL
Approved by EPA
December 2011

 

Winchester Lake Completed
May 2000

Lindsay Creek Agriculture
Completed April 2008

Potlatch River
Revised March 2013

Jim Ford Creek Agriculture
Revised February 2014

Clearwater River, North Fork (Upper) Subbasin
17060307

Approved by EPA
December 2003

Under development

Clearwater River, North Fork (Lower) Subbasin
17060308

Approved by EPA
January 2003

Five-Year Review and
TMDL Addendum
Approved by EPA
November 2013

Completed
May 2004

Addendum Completed
December 2013

See 2013
TMDL Addendum

Coeur d'Alene Lake Subbasin
Includes Black Lake watershed
17010303

Approved by EPA
July 2000

Black Lake TMDL
Approved by EPA
August 2011

Coeur d'Alene Lake
Tributaries Addendum
Approved by EPA
November 2012

Fernan Lake Addendum
Approved by EPA
November 2013

Completed 2002

See 2011 TMDL
Addendum and Update

Coeur d'Alene River (South Fork) Subbasin
17010302

Approved by EPA
August 2003

Under development

Coeur d'Alene River (Upper/North Fork) Subbasin
17010301

Approved by EPA
February 2002

Addendum
Approved by EPA
April 2014

Under development

See North Fork Coeur d'Alene River Subbasin Watershed Restoration Effectiveness Review – Sediment Reductions and Biological Response Document and Success Story

Goose Creek Subbasin
17040211

Approved by EPA
July 2004

Temperature Addendum
Approved by EPA
April 2012

Under development

Completed
June 2010

Hangman Creek Subbasin
17010306

Approved by EPA
September 2007

Henrys Fork (Upper and Lower) Subbasin
17040202 17040203

Assessment Completed
December 1998

Addendum Approved
by EPA
August 2010

NA

Completed April 2010

Idaho Falls Subbasin
17040201

Approved by EPA
November 2004

Under development

Jordan Creek Subbasin
17050108

Partially Approved/Partially Disapproved by EPA
April 2011

Kootenai and Moyie Rivers Subbasins
17010101 17010104 17010105

Approved by EPA
January 2007

2014 Temperature TMDL Addendum
Approved by EPA
October 2014

Draft Completed
November 2005

Lemhi River Subbasin
17060204

Approved by EPA
March 2000

Addendum Approved
by EPA
February 2013

Completed
September 2001

See October 2012
TMDL Addendum

Little Lost River Subbasin
17040217

Approved by EPA
September 2000

Completed
February 2002

Little Salmon River Subbasin
17060210

Approved by EPA
March 2006

Addendum Approved
by EPA
April 2013

Completed
November 2008

Completed
April 2012

Little Wood River Subbasin
17040221

Approved by EPA
September 2005

Agriculture Completed
March 2010

Lochsa River Subbasin
17060303

Assessment Completed
September 1999

Addendum Submitted
to EPA
May 2012

NA

Medicine Lodge Creek Subbasin
17040215

Approved by EPA
May 2003

Agriculture Completed
July 2002

Owyhee River (Middle) Subbasin
17050107

Approved by EPA
February 2000

Watershed Temperature TMDLs
  Approved by EPA
July 2012

Completed
February 2002

Completed
June 2009

Owyhee River (South Fork) Subbasin
17050105

Approved by EPA
March 2000

Watershed Temperature TMDLs
  Approved by EPA
July 2012

Under development

Owyhee River (Upper) Subbasin
17050104

Approved by EPA
March 2003

Watershed Temperature TMDLs
  Approved by EPA
July 2012

Agriculture Completed
October 2004

Completed
June 2009

Pahsimeroi River Subbasin
17060202

Approved by EPA
December 2001

Addendum Approved
by EPA April 2014

Agriculture Completed
September 2005

See 2013
TMDL Addendum

Palisades Subbasin
Includes Fall Creek watershed
17040104

Approved by EPA
February 2001

Fall Creek TMDL
Approved by EPA
April 2004

2013 Addendum
and Five-Year Review
Approved by EPA
February 2014

Completed
August 2002

See 2013
TMDL Addendum

Palouse River Subbasin
Includes Cow Creek and Paradise Creek watersheds
17060108

Paradise Creek TMDL
Approved by EPA
February 1998

Palouse River Tributaries TMDL
Approved by EPA
March 2005

Cow Creek TMDL
Approved by EPA
February 2006

South Fork Palouse River TMDL
Approved by EPA
October 2007

Cow Creek TMDL Addendum
Approved by EPA
April 2014

Paradise Creek Completed
December 1999

Cow Creek Agriculture
Revised May 2013

Cow Creek Temperature
July 2014

Payette River (Middle Fork) Subbasin
17050121

Approved by EPA
July 2000

Temperature TMDL
Approved by EPA
December 2007

Completed
August 2003

Completed February 2009

Payette River (North Fork) Subbasin
Includes Cascade Reservoir watershed
17050122 17050123

Cascade Reservoir
Phase I Approved by
EPA
May 1996

Cascade Reservoir
Phase II Approved by EPA April 1999

North Fork Payette River TMDL
Approved by EPA
August 2005

Cascade Reservoir Tributary Addendum
Approved by EPA
February 2012

 

Cascade Reservoir All Phases Completed June 2000

North Fork Payette River
Completed June 2007

Cascade Reservoir All Phases
Completed February 2009

North Fork Payette River
Completed July 2012

Payette River (South Fork) Subbasin
17050120

Assessment Completed
July 2005

NA

Completed
January 2011

Payette River Subbasin
Includes Bissel Creek watershed
17050122

Lower Payette
River TMDL
Approved by EPA
May 2000

Bissel Creek TMDL
Approved by EPA
October 2003

Big Willow Creek Addendum
Approved by EPA
July 2008

Little Willow Creek Addendum
Approved by EPA
December 2013

Completed
January 2003

Big Willow Completed
August 2010

Bissel Creek Completed
April 2006;
Revised 2014

Completed February 2010

Pend Oreille Lake Subbasin
17010214

Clark Fork-Pend Oreille TMDL Approved by EPA September 2000 and April 2001

Nearshore Waters TMDL Approved by EPA October 2002

Temperature TMDL Addendum Approved by EPA April 2008

Sediment TMDL Addendum Approved by EPA January 2008

Pack River Nutrients TMDL Addendum Approved by EPA December 2008

Nearshore Waters Completed December 2004

Pack River Completed July 2006

Cocolalla Lake, Cocolalla Creek, and Hoodoo Creek Completed July 2004

Portneuf River Subbasin
17040208

Approved by EPA
April 2001

Revision & Addendum
Approved by EPA
August 2010

Completed
July 2003

See Revised TMDL

Priest River Subbasin
17010215

Approved by EPA March 2002

Addendum Approved by EPA June 2003

Under development

Raft River Subbasin
17040210

Approved by EPA
July 2004

Temperature Addendum
Approved by EPA
April 2012

Agriculture Completed
July 2006

Completed
September 2011

Salmon Falls Creek Subbasin
17040213

Mid Snake River TMDL Approved by EPA April 1997

Mid Snake River TMDL Modification Approved by EPA 2005

Salmon Falls Creek TMDL Approved by EPA
February 2008

Upper Snake Rock
June 2001

Agriculture Completed
February 2009

Salmon River (Lower) and Hells Canyon Subbasins
17060209 17060101

Approved by EPA
February 2010

Salmon River (Middle) - Chamberlain Creek Subbasin
17060207

Approved by EPA
January 2003

Under development

Salmon River (Middle) - Panther Creek Subbasin
17060203

Approved by EPA
July 2001

Completed
November 2002

Salmon River (South Fork) Subbasin
17060208

Approved by EPA
January 1992

Addendum
Approved by EPA
October 2012

Under development

Completed March 2011

Salmon River (Upper and Lower Middle Forks) Subbasin
17060205 17060206

Approved by EPA
February 2009

Salmon River (Upper) Subbasin
17060201

Approved by EPA
March 2003

 

Agriculture Completed
February 2007

Selway River (Lower) Subbasin
17060302

SBA December 2000

NA

Snake (Lower)-Asotin Subbasin
Includes Tammany Creek watershed
17060103

Approved by EPA
February 2002

Addendum
Approved by EPA
December 2010

Under development

Snake River - Hells Canyon Subbasins
17060101 17050103 17050115 17050201

Approved by EPA
September 2004

See TMDL for
Implementation Strategies

Snake River (Middle) - Succor Creek Subbasin
17050103

Approved by EPA
January 2004

Addendum Approved by EPA December 2007

Tributaries Sediment TMDL Addendum Approved by EPA
October 2013

Completed
July 2005;
Revised 2014

Completed September 2011

Snake River (Upper Snake-Rock) Subbasin
17040212

Mid Snake TMDL
Phase I Approved by EPA April 1997

Upper Snake Rock TMDL Approved by EPA August 2000

Upper Snake Rock TMDL Modification Approved by EPA September 2005

City of Twin Falls TSS Revision Submitted to EPA January 2011

Completed June 2001

Completed April 2010

Spokane River (Upper) Subbasin
17010305

Approved by EPA
January 2001

Fish Creek Watershed
Assessment and TMDLs
Approved by EPA
June 2008

Underdevelopment

St. Joe River Subbasin
Includes St. Maries River watershed
17010304

Approved by EPA
August 2003

Temperature TMDL Addendum
Approved by EPA
December 2011

Agriculture Completed
November 2003

Completed September 2011

Teton River Subbasin
17040204

Approved by EPA
February 2003 and
September 2003

Agriculture Completed
April 2005;
Revised February 2014

Walcott Lake Subbasin
17040209

Approved by EPA
June 2000

Fall and Rueger Springs
Creeks Aquaculture
Addendum TMDLs
Approved by EPA
March 2007

Marsh Creek
Temperature & E. coli
TMDLs Addendum
Submitted to EPA
December 2013

Completed
December 2001

Completed
May 2012

Weiser River Subbasin
17050124

Approved by EPA
January 2007

Temperature Addendum
Approved by EPA
January 2007

Agriculture:
Revised May 2013

Completed
June 2014

Willow Creek Subbasin
17040205

Approved by EPA
June 2004

Agriculture Completed
January 2011